rotary snow plough

例句：

1. 1. The rotary snowplow is an essential tool for clearing snow in winter.
   旋转式雪犁是冬季清除积雪的重要工具。
2. 2. The farmerused the rotary snow plow toclear the snow from his farmland.
   农民使用旋转式雪犁来清理他的农田上的积雪。
3. 3. The rotary snow plow has greatly improved the efficiency of snowremoval in our area.
   旋转式雪犁大大提高了我们地区积雪清理的效率。